Subfiling Virtual File Driver user guide is now available!
The HDF5 Subfiling Virtual File Driver (VFD) is an MPI-based File Driver that was introduced in the HDF5 1.14.0 release. This File Driver allows an HDF5 application to create HDF5 files which are distributed across a collection of ”subfiles” in equal-sized data segment ”stripes.” I/O to the logical HDF5 file is directed to the appropriate ”subfile” according to the Subfiling VFD configuration and a system of ”I/O Concentrators.” For more information on the general design of this VFD, refer to the Subfiling RFC. A user guide for the Subfiling Virtual File Driver was created in conjunction with the ExaIO team. The document gives a brief overview of the Subfiling VFD and details how to build and use the VFD, how to get the...